/**
 * jGrowl 1.2.4
 *
 * Dual licensed under the MIT (http://www.opensource.org/licenses/mit-license.php)
 * and GPL (http://www.opensource.org/licenses/gpl-license.php) licenses.
 *
 * Written by Stan Lemon <stosh1985@gmail.com>
 * Last updated: 2009.12.13
 *
 * jGrowl is a jQuery plugin implementing unobtrusive userland notifications.  These 
 * notifications function similarly to the Growl Framework available for
 * Mac OS X (http://growl.info).
 *
 * To Do:
 * - Move library settings to containers and allow them to be changed per container
 *
 * Changes in 1.2.4
 * - Fixed IE bug with the close-all button
 * - Fixed IE bug with the filter CSS attribute (special thanks to gotwic)
 * - Update IE opacity CSS
 * - Changed font sizes to use "em", and only set the base style
 *
 * Changes in 1.2.3
 * - The callbacks no longer use the container as context, instead they use the actual notification
 * - The callbacks now receive the container as a parameter after the options parameter
 * - beforeOpen and beforeClose now check the return value, if it's false - the notification does
 *   not continue.  The open callback will also halt execution if it returns false.
 * - Fixed bug where containers would get confused
 * - Expanded the pause functionality to pause an entire container.
 *
 * Changes in 1.2.2
 * - Notification can now be theme rolled for jQuery UI, special thanks to Jeff Chan!
 *
 * Changes in 1.2.1
 * - Fixed instance where the interval would fire the close method multiple times.
 * - Added CSS to hide from print media
 * - Fixed issue with closer button when div { position: relative } is set
 * - Fixed leaking issue with multiple containers.  Special thanks to Matthew Hanlon!
 *
 * Changes in 1.2.0
 * - Added message pooling to limit the number of messages appearing at a given time.
 * - Closing a notification is now bound to the notification object and triggered by the close button.
 *
 * Changes in 1.1.2
 * - Added iPhone styled example
 * - Fixed possible IE7 bug when determining if the ie6 class shoudl be applied.
 * - Added template for the close button, so that it's content could be customized.
 *
 * Changes in 1.1.1
 * - Fixed CSS styling bug for ie6 caused by a mispelling
 * - Changes height restriction on default notifications to min-height
 * - Added skinned examples using a variety of images
 * - Added the ability to customize the content of the [close all] box
 * - Added jTweet, an example of using jGrowl + Twitter
 *
 * Changes in 1.1.0
 * - Multiple container and instances.
 * - Standard $.jGrowl() now wraps $.fn.jGrowl() by first establishing a generic jGrowl container.
 * - Instance methods of a jGrowl container can be called by $.fn.jGrowl(methodName)
 * - Added glue preferenced, which allows notifications to be inserted before or after nodes in the container
 * - Added new log callback which is called before anything is done for the notification
 * - Corner's attribute are now applied on an individual notification basis.
 *
 * Changes in 1.0.4
 * - Various CSS fixes so that jGrowl renders correctly in IE6.
 *
 * Changes in 1.0.3
 * - Fixed bug with options persisting across notifications
 * - Fixed theme application bug
 * - Simplified some selectors and manipulations.
 * - Added beforeOpen and beforeClose callbacks
 * - Reorganized some lines of code to be more readable
 * - Removed unnecessary this.defaults context
 * - If corners plugin is present, it's now customizable.
 * - Customizable open animation.
 * - Customizable close animation.
 * - Customizable animation easing.
 * - Added customizable positioning (top-left, top-right, bottom-left, bottom-right, center)
 *
 * Changes in 1.0.2
 * - All CSS styling is now external.
 * - Added a theme parameter which specifies a secondary class for styling, such
 *   that notifications can be customized in appearance on a per message basis.
 * - Notification life span is now customizable on a per message basis.
 * - Added the ability to disable the global closer, enabled by default.
 * - Added callbacks for when a notification is opened or closed.
 * - Added callback for the global closer.
 * - Customizable animation speed.
 * - jGrowl now set itself up and tears itself down.
 *
 * Changes in 1.0.1:
 * - Removed dependency on metadata plugin in favor of .data()
 * - Namespaced all events
 */
(function($) {

        /** jGrowl Wrapper - Establish a base jGrowl Container for compatibility with older releases. **/
        $.jGrowl = function( m , o ) {
                // To maintain compatibility with older version that only supported one instance we'll create the base container.
                if ( $('#jGrowl').size() == 0 ) 
                        $('<div id="jGrowl"></div>').addClass($.jGrowl.defaults.position).appendTo('body');

                // Create a notification on the container.
                $('#jGrowl').jGrowl(m,o);
        };


        /** Raise jGrowl Notification on a jGrowl Container **/
        $.fn.jGrowl = function( m , o ) {
                if ( $.isFunction(this.each) ) {
                        var args = arguments;

                        return this.each(function() {
                                var self = this;

                                /** Create a jGrowl Instance on the Container if it does not exist **/
                                if ( $(this).data('jGrowl.instance') == undefined ) {
                                        $(this).data('jGrowl.instance', $.extend( new $.fn.jGrowl(), { notifications: [], element: null, interval: null } ));
                                        $(this).data('jGrowl.instance').startup( this );
                                }

                                /** Optionally call jGrowl instance methods, or just raise a normal notification **/
                                if ( $.isFunction($(this).data('jGrowl.instance')[m]) ) {
                                        $(this).data('jGrowl.instance')[m].apply( $(this).data('jGrowl.instance') , $.makeArray(args).slice(1) );
                                } else {
                                        $(this).data('jGrowl.instance').create( m , o );
                                }
                        });
                };
        };

        $.extend( $.fn.jGrowl.prototype , {

                /** Default JGrowl Settings **/
                defaults: {
                        pool:                   0,
                        header:                 '',
                        group:                  '',
                        sticky:                 false,
                        position:               'top-right', // Is this still needed?
                        glue:                   'after',
                        theme:                  'default',
                        corners:                '10px',
                        check:                  250,
                        life:                   3000,
                        speed:                  'normal',
                        easing:                 'swing',
                        closer:                 true,
                        closeTemplate: '&times;',
                        closerTemplate: '<div>[ close all ]</div>',
                        log:                    function(e,m,o) {},
                        beforeOpen:     function(e,m,o) {},
                        open:                   function(e,m,o) {},
                        beforeClose:    function(e,m,o) {},
                        close:                  function(e,m,o) {},
                        animateOpen:    {
                                opacity:        'show'
                        },
                        animateClose:   {
                                opacity:        'hide'
                        }
                },
                
                notifications: [],
                
                /** jGrowl Container Node **/
                element:        null,
        
                /** Interval Function **/
                interval:   null,
                
                /** Create a Notification **/
                create:         function( message , o ) {
                        var o = $.extend({}, this.defaults, o);

                        this.notifications.push({ message: message , options: o });
                        
                        o.log.apply( this.element , [this.element,message,o] );
                },
                
                render:                 function( notification ) {
                        var self = this;
                        var message = notification.message;
                        var o = notification.options;

                        var notification = $(
                                '<div class="jGrowl-notification ui-state-highlight ui-corner-all' + 
                                ((o.group != undefined && o.group != '') ? ' ' + o.group : '') + '">' +
                                '<div class="close">' + o.closeTemplate + '</div>' +
                                '<div class="header">' + o.header + '</div>' +
                                '<div class="message">' + message + '</div></div>'
                        ).data("jGrowl", o).addClass(o.theme).children('div.close').bind("click.jGrowl", function() {
                                $(this).parent().trigger('jGrowl.close');
                        }).parent();


                        /** Notification Actions **/
                        $(notification).bind("mouseover.jGrowl", function() {
                                $('div.jGrowl-notification', self.element).data("jGrowl.pause", true);
                        }).bind("mouseout.jGrowl", function() {
                                $('div.jGrowl-notification', self.element).data("jGrowl.pause", false);
                        }).bind('jGrowl.beforeOpen', function() {
                                if ( o.beforeOpen.apply( notification , [notification,message,o,self.element] ) != false ) {
                                        $(this).trigger('jGrowl.open');
                                }
                        }).bind('jGrowl.open', function() {
                                if ( o.open.apply( notification , [notification,message,o,self.element] ) != false ) {
                                        if ( o.glue == 'after' ) {
                                                $('div.jGrowl-notification:last', self.element).after(notification);
                                        } else {
                                                $('div.jGrowl-notification:first', self.element).before(notification);
                                        }
                                        
                                        $(this).animate(o.animateOpen, o.speed, o.easing, function() {
                                                // Fixes some anti-aliasing issues with IE filters.
                                                if ($.browser.msie && (parseInt($(this).css('opacity'), 10) === 1 || parseInt($(this).css('opacity'), 10) === 0))
                                                        this.style.removeAttribute('filter');

                                                $(this).data("jGrowl").created = new Date();
                                        });
                                }
                        }).bind('jGrowl.beforeClose', function() {
                                if ( o.beforeClose.apply( notification , [notification,message,o,self.element] ) != false )
                                        $(this).trigger('jGrowl.close');
                        }).bind('jGrowl.close', function() {
                                // Pause the notification, lest during the course of animation another close event gets called.
                                $(this).data('jGrowl.pause', true);
                                $(this).animate(o.animateClose, o.speed, o.easing, function() {
                                        $(this).remove();
                                        var close = o.close.apply( notification , [notification,message,o,self.element] );

                                        if ( $.isFunction(close) )
                                                close.apply( notification , [notification,message,o,self.element] );
                                });
                        }).trigger('jGrowl.beforeOpen');
                
                        /** Optional Corners Plugin **/
                        if ( $.fn.corner != undefined ) $(notification).corner( o.corners );

                        /** Add a Global Closer if more than one notification exists **/
                        if ( $('div.jGrowl-notification:parent', self.element).size() > 1 && 
                                 $('div.jGrowl-closer', self.element).size() == 0 && this.defaults.closer != false ) {
                                $(this.defaults.closerTemplate).addClass('jGrowl-closer ui-state-highlight ui-corner-all').addClass(this.defaults.theme)
                                        .appendTo(self.element).animate(this.defaults.animateOpen, this.defaults.speed, this.defaults.easing)
                                        .bind("click.jGrowl", function() {
                                                $(this).siblings().children('div.close').trigger("click.jGrowl");

                                                if ( $.isFunction( self.defaults.closer ) ) {
                                                        self.defaults.closer.apply( $(this).parent()[0] , [$(this).parent()[0]] );
                                                }
                                        });
                        };
                },

                /** Update the jGrowl Container, removing old jGrowl notifications **/
                update:  function() {
                        $(this.element).find('div.jGrowl-notification:parent').each( function() {
                                if ( $(this).data("jGrowl") != undefined && $(this).data("jGrowl").created != undefined && 
                                         ($(this).data("jGrowl").created.getTime() + $(this).data("jGrowl").life)  < (new Date()).getTime() && 
                                         $(this).data("jGrowl").sticky != true && 
                                         ($(this).data("jGrowl.pause") == undefined || $(this).data("jGrowl.pause") != true) ) {

                                        // Pause the notification, lest during the course of animation another close event gets called.
                                        $(this).trigger('jGrowl.beforeClose');
                                }
                        });

                        if ( this.notifications.length > 0 && 
                                 (this.defaults.pool == 0 || $(this.element).find('div.jGrowl-notification:parent').size() < this.defaults.pool) )
                                this.render( this.notifications.shift() );

                        if ( $(this.element).find('div.jGrowl-notification:parent').size() < 2 ) {
                                $(this.element).find('div.jGrowl-closer').animate(this.defaults.animateClose, this.defaults.speed, this.defaults.easing, function() {
                                        $(this).remove();
                                });
                        }
                },

                /** Setup the jGrowl Notification Container **/
                startup:        function(e) {
                        this.element = $(e).addClass('jGrowl').append('<div class="jGrowl-notification"></div>');
                        this.interval = setInterval( function() { 
                                $(e).data('jGrowl.instance').update(); 
                        }, this.defaults.check);
                        
                        if ($.browser.msie && parseInt($.browser.version) < 7 && !window["XMLHttpRequest"]) {
                                $(this.element).addClass('ie6');
                        }
                },

                /** Shutdown jGrowl, removing it and clearing the interval **/
                shutdown:   function() {
                        $(this.element).removeClass('jGrowl').find('div.jGrowl-notification').remove();
                        clearInterval( this.interval );
                },
                
                close:  function() {
                        $(this.element).find('div.jGrowl-notification').each(function(){
                                $(this).trigger('jGrowl.beforeClose');
                        });
                }
        });
        
        /** Reference the Defaults Object for compatibility with older versions of jGrowl **/
        $.jGrowl.defaults = $.fn.jGrowl.prototype.defaults;

})(jQuery);